Roofing composition



UNITED STATES PATENT OFFICE.

ROOFING COMPOSITION.

SPECIFICATION forming part of Letters Patent No. 423,699, dated March 18, 1890. Application filed January 20,1890. Serial ll'o. 337,510. (No specimens- To all whom it may concern.-

Be it known that I, MOSES W. POWELL, residing at Chicago, in the county of, Cook and State of Illinois, and a citizen of the United 'Stateshave invented a new and useful Improvement in Roofing Composition, of which the following is a specification.

This invention relates to a new composition for covering the roofs of buildings, and has V for its object to provide a composition that when applied will protect a roof from the destructive influence of the atmosphere and the heat of the sun.

My improved composition consists of the I5 following ingredients in about the following proportions, by weight, to wit: six parts of rosin, six parts of asphaltum, three parts of residuum of petroleum, three parts of kidneyoil, and two parts of actinolite.

' In preparing my composition I place the rosin, asphaltum, and residuum in a suitable vessel over a fire, where they are left until the rosin and asphaltum are reduced to a liquid form. The kidney-oil and actinolite are then 5 to be added and the mass stirred until the whole is thoroughly mixed. The liquid can then be applied to strips of the ordinary felt employed for roofing purposes; but in most cases itwill probably notbe convenient to use the composition immediately after-it is prepared. In such cases the composition can be .poured into barrels or other receptacles and allowed to cool and harden, and when it is to be used the cakes into which it has formed can be broken up and easily melted.

The liquid composition is to be applied to a layer of felt or cloth laid on the roof of a building, after which one or more other layers can be laid over the coated first layer. The cloth or felt can be applied in any of the usual and well-known manners, and can be covered with a top dressing of gravel or broken stone, if desired.

A roof-covering coated with my improved composition will be found to be very durable, and by reason of the composition the roof will be preserved for a long time from the destructive action of the atmosphere and heat of the sun'.

What I claim as new, and desire to secure by Letters Patent, is as follows:

A roofing composition composed of rosin, asphaltum, petroleum residuum, kidney-oil,

and actinolite mixed together, substantially as and in the proportions specified.

, MOSES W. POWELL.

IVitnesses:

ALBERT H; ADAMS, HARRY 'l. J ONES. 

